MSH - Demand & Supply Zones Pro

### Overview
The Demand and Supply Zones Pro indicator automatically identifies, plots, and tracks institutional market structure imbalance zones on your chart. Based on core Extended Market Structure (EMS) price action principles, it highlights areas where institutional supply or demand imbalances cause rapid price movements.

### Features & Methodology
1. Zone Identification Logic:
The indicator evaluates individual candlestick body-to-range ratios to classify candle types into:
- Base Candles: Consolidation or low-volatility bars where body size is ≤ 50% of total candle range.
- Leg-In / Leg-Out Candles: High-momentum, strong-body expansion candles.

2. Pattern Classifications (RBR, DBR, RBD, DBD):
- Demand Zones: Rally-Base-Rally (RBR) and Drop-Base-Rally (DBR).
- Supply Zones: Rally-Base-Drop (RBD) and Drop-Base-Drop (DBD).

3. Dynamic Zone Tracking & Boundaries:
- Proximal Line: Plotted at the top/bottom boundary of the base body for entry reference.
- Distal Line: Plotted at the extreme high/low wick of the base for stop-loss and risk reference.
- Dynamic Extensions & Violation Cleanup: Active zones extend automatically to current price action and are automatically removed once invalidating price breaks occur.

4. Trend & Moving Average Overlays:
- Includes integrated Rapid (EMA 7) and Fast (EMA 21) Exponential Moving Averages to quickly assess short-term momentum and trend alignment alongside zone levels.

### How to Use
- Looking for Demand Trades (Long): Seek long setups when price revisits active Green/Demand zones, especially when aligned with short-term EMA momentum.
- Looking for Supply Trades (Short): Seek short setups when price approaches active Red/Supply zones.
- Risk Management: Use the Distal boundary of the zone as a structural stop-loss level.

### Settings & Customization
- Candle Rules: Adjust body percentage thresholds for Base, Leg-In, and Leg-Out candles to match different asset classes (Equities, Forex, Crypto, Futures).
- Display Limits: Set maximum active zones displayed concurrently to maintain chart clarity.
- Visuals: Fully customizable zone fill, border colors, and label options.